package bookstudytest;

/**
 * Created by swordbone on 2017/11/17.
 */
public class HelloSon extends Hello {
    public static void main(String args[]){
        HelloSon hs=new HelloSon();
        hs.bb();
        hs.cc();
        hs.dd();
        String bson=hs.b;
        String cson=hs.c;
        String dson=hs.d;
    }
}
